Why is it important for forensic scientists to have as much information as possible about the place where a possible drug substance was found?

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.